<!DOCTYPE html>
<!--suppress ThymeleafVariablesResolveInspection -->
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>操作失败! </title>
</head>
<body>
<h2>操作失败! </h2>
<h1 th:text="'后台传送的消息是:'+${msg} "></h1>
</body>
</html>